Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4JOI callsign genealogy
Currently held by GREEN, JOSEPH N
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K4JOI's current licensee, walking backwards.
- RASH, RICHARD JNCgranted 2008-01-14cancelled 2008-03-28
Successor callsigns
Callsigns held now by people who previously held K4JOI.
- RASH, RICHARD JNCgranted 2019-03-05
All historical holders
Every license row we've seen with the callsign K4JOI, oldest first.
- GREEN, JOSEPH N GA1995-10-17 → cancelled 2003-01-16
- RASH, RICHARD J NC2008-03-28 → cancelled 2009-05-27